I purchased the subject two undated RPPC (Real Photo Postcards) (not postally used). The handwriting is the same on both cards and so I assume the three individuals are related. One card, depicting a teenage girl in a garden setting, is identified on the holder:
The other card, depicting a young man and a boy standing in front of a pained backdrop, is identified on the front:
"Tom & Bill Woolley"
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Paul A. Peterson